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gleitet' tsts i strnt @Hita MYRON DIGKS'ON. Letters Patent No. 68,667, elated September 10, 18674.

IMBROVEMENT IN ANri-FBICTION JOURNALfBOX.

@te tlganir rama tu in 'tinteY Enters tant mit .making part nf the site.

ro-ALL WHoM 1T MAY eoNoERN:

Be it known 4that I, HENRY T.- STITH, of Stanton, in the county of Miami, in theState of Kansas, have" invented n ew and useful improvements in Anti-Friction Journal-Boxes; and I do hereby declare that the following is a full, clear,'andi exact description thereof, reference being had to the accompanying drawing, making part of this specification. l

This invention 'relates to the peculiar construction and arrangement of the boxingin which the journals of machinery revolve, or which revolve around the axles of vehicles,'1vith a view to lessen the expense and render more practicable the application-of thattclass of journalfboxescalled antiLfriction, V

'Figure 1 isl an end view of my anti-friction journal-box, which may be considered as the hub of acarriage or wagon-wheel. A

lFigures 2 and 4 is a view "of the interior, shown by removing theend4 plate A', fig. 3;

Figure 3 is a section view, v l

Similar letters of reference indicate corresponding parte in the several figures.

The following description will enable those skilled in the art to make and use my invention.

A is the external case, which represents either the hub of a wagon-wheel, or the box or bearing in which the journal of a. shaft revolves.` This case is turned out on the inside, as shown. is an annular ring,'made` to litv upon and secured to the axle or shaft, and is made asvmuch less in diameter than` the inside diameter et' the external case as is required for the small rollers C, so as to forman annularchambeto receive these rollers,

which are small cylinders of steel, with square ends, and are a littleshortcr than the length of the chamber, so

as not to rub on the sides of the chamber. These rollers are loose, but are of the proper size, diameter, and' number to neatly fill the annular chamber.- The ringB is pro-vided with tubular-,projections that extendthrough the centre opening of. the external case, as shown in iig. 3. '.lhis ring is made fast to the axle or shaft, and its perimeter rests and revel-ves upon the small rollers C, and thel latter rest and revolve against the inner surface of the external-case. These' rollers revolve between the two surfaces, and at the same time travel around in the annular groove` or chamber between the ring B and case A, thus distributing both' the' motion and the friction. in such a manner as to avoid heating and Wear 'of the parts, and consequently thc use of a lubricator.

Access is had to the interior of the box by removing the plate A', whichforms one enclof thejournal-lum,` andis secured to the box A by screw-bolts. 4 The perimeter of the ringB may be faced with abandof hardened steel, or-other suitable metal, as shown at D, iig. 4, Aand so also may the inner surface ofthe` box, as shown at E in the same figure. These facing rings are not shown, but I contemplate using them in this manner -as a convenient means of removing these surfaces when they become worn. Y 1

It will bc seen that the simplicity of thc construction and larrangement of thcscveral parts forming this journal-box are such as to' be very strong and durable, and the axle may be very large in proportion to the size of the wheel, without increasing proportionately the friction on the axle. i

-I `do not make any claim to Vthe use' of the rollers C, Vin themselves considered, as they have before been used for a similar purpose.

I claim the box A and ring ll, in combination with the rollers C, all constructed, arranged, and `applied in the manner and for the purn'esc substantially as set forth. I

' HENRY T; STI'IH,

Witnesses.:

0. F. MAYHEW W. .El DIoKsoN. 

